I noticed the same effect as i went lower in frequency. The signal itself appeared marginally louder, but no different in tone. Starting at 250Hz, and activating the maxxbass, i did not notice a single difference in the tone itself. The same back-and-forth methodology was also used with music, but more on that later. i would enable/disable the maxxbass repeatedly and observe the difference.

With test tones, i began at 250Hz, listening to frequencies in 1/3 octave steps all the way down to 30Hz. Then i repeated the listening tests on my home mini hi-fi, a standard 200 dollar boombox with a 3 way bass reflex setup. The headphones are Beyerdynamic DT-770 Pros. I used 2 seperate sets of equipment, the first a high-resolution pair of headphones with a dedicated headphone amp (my choice of musical reference, i have yet to hear any car audio system come close to the sound quality my headphones possess, and in the headphone world, they are only middle tier at best). my scope and DMM are no longer in australia so my impressions are divided basically into 2 parts: Performance using test tones, then how they performed subjectively with music. I should state from the onset that i have a severe lack of equipment right now. They ordered in a unit for me, and i just picked it up today.Here are the results So i thought to myself: 'Alright, this thing passed the first test, now i'll buy a set and do some more testing at home and see if i REALLY think this unit is a keeper'. Some have said it before, hooked up to standard 6.5 inch speakers, if i didnt tell you the maxxbass was being used, and i just turned it on, you would think that i activated an additional subwoofer somewhere. There was just a lot more presence, and notes which were clearly inaudible or close to it suddenly appeared just as large in intensity as everything else in the spectrum. I tried the sub setting and did not notice a difference but there was a large difference on the 'door' setting. It was hard to judge, but i did what i could and my initial impressions when playing the music whilst going back and forth bypassing and activating the maxxbass processor was 'my goodness, it really works.' I could easily hear basslines an octave lower (maybe more) with the maxxbass unit activated on the minimum setting (set to 'door' and not 'sub'). I brought a couple of cds with me to test out.

It was a noisy and crowded store, but they had a unit hooked up to some ghetto nasty car audio speakers on soundboards. I heard of a electronics/car audio retailer nearby who stocked the unit. I decided to post it here cos i love this forum and because all the smart guys browse this forum and will definitely come across this. I thought i would include my impressions because reviews of this device are a little hard to find and there has been some pretty controversial debate about it in other forums. I finally managed to get my hands on a maxxbass 103 processor when it started retailing here in australia a couple of months back.

Soundstream epicenter bx 12